also, is there any api similiar to IPN, callback in bitpay API? php, I cannot find it in the manual

any BitPay plugin for opencart 1.5.X version?
I found all the supported version is 2.X, try to find an earlier version

which btc payment gateway api easy to use?

need payment gateway to accept international bank card and MLM company

to compile altcoin and create genesis block, win8 and win10 different?
I used to use win8 to create genesis block ok, now I use win10, it shows:
CBlock(hash=00000f1b793437f9c95e2d0932156150d1cd584cfc517fea2daf31ae174f9ea0, ver=1, hashPrevBlock=0000000000000000000000000000000000000000000000000000000000000000, hashMerkleRoot=1390b75dd1bdfe9b83feaf692e62db43157111cac7df224174151f2bc2477574, nTime=1473283649, nBits=1e0fffff, nNonce=77745, vtx=1, vchBlockSig=)
  Coinbase(hash=1390b75dd1, nTime=1473283649, ver=1, vin.size=1, vout.size=1, nLockTime=0)
    CTxIn(COutPoint(0000000000, 4294967295), coinbase 00012a0c6d616b6520697420676f6f64)
    CTxOut(empty)
  vMerkleTree: 1390b75dd1
ERROR: AddToBlockIndex() : Rejected by stake modifier checkpoint height=0, modifier=0x0000000000000000
ERROR: LoadBlockIndex() : genesis block not accepted

any step wrong?

Any altcoin create service?
windows wallet, mac wallet, node wallet

hw to fix the checkpoint issue for x11 coin
always rejected stake

whether scrypt altcoin can mine by itself?
it I made an altcoin in scrypt, and I put it on the node, the scrypt will mine by itself by some simple setting? thanks

is there any good genesis hash generator for altcoin?

where to buy script of mlm
php
good one

need to buy good mlm script, better with good-looking shopping mall

where to mix blockchain with low cost and reliable?
I saw the site blockchain.info and cannot find this service anymore, i think they closed

where to download light weight bitcoin wallet and litecoin wallet

which coin using bitcoin comment field of sendtoaddress?
any coins using this field? source code to research?

where to buy multi level marketing php site script

any cheap and reliable linux vps?

how to compile android wallet for altcoin

any demo

any good php bitcoin altcoin exchange/trading script

anyway to make web version or android version of walletfor altcoin